FIXED: The problem only occurs if you have updated to jb 1.1.3 from 1.1.1 . If that is the case the only fix i have found is to downgrade using iphuc or another method to 1.1.1. Then from that you have to update to 1.1.2 jb. then from that you have to update to 1.1.3 jb. it takes a while but if you have the problem its worth it!